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GB 6781-2007 English PDF

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GB 6781-2007: Food additive -- Ferrous lactate
Status: Obsolete

GB 6781: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 6781-2007	English	319	Add to Cart	3 days [Need to translate]	Food additive -- Ferrous lactate	Obsolete	GB 6781-2007
GB 6781-1986	English	279	Add to Cart	3 days [Need to translate]	Food additive--Ferrous lactate	Obsolete	GB 6781-1986

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Basic data

Standard ID	GB 6781-2007 (GB6781-2007)
Description (Translated English)	Food additive -- Ferrous lactate
Sector / Industry	National Standard
Classification of Chinese Standard	X42
Classification of International Standard	67.220.20
Word Count Estimation	8,841
Date of Issue	2007-10-29
Date of Implementation	2008-06-01
Older Standard (superseded by this standard)	GB 6781-1986
Quoted Standard	GB/T 601; GB/T 602; GB/T 603; GB/T 5009.11; GB/T 5009.12; GB/T 6682
Regulation (derived from)	China Announcement of Newly Approved National Standards No. 13 of 2007 (No. 113 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This Chinese standard relates to food additive ferrous lactate technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and shelf life. Suitable calcium lactate, sodium lactate or ammonium lactate ferrous chloride or ferrous sulfate and the reaction or the reaction of lactic acid and iron ferrous lactate trihydrate products.

GB 6781-2007: Food additive -- Ferrous lactate

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Food additive.Ferrous lactate ICS 67.220.20 X42 National Standards of People's Republic of China Replacing GB 6781-1986 Food additives Ferrous lactate Posted 2007-10-29 2008-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Chapter 4 of this standard technical requirements are mandatory, others are recommended. The technical requirements of the standard reference to the use of FAO and World Health Organization (FAO/WHO) Joint Expert on Food Additives Committee (JECFA) specifications. This standard replaces GB 6781-1986 "food additive ferrous lactate." The main technical differences between standard compared with GB 6781-1986 as follows. --- Physical and chemical indicators increased requirements ferrous lactate, ferric iron, chloride, sulfate, lead project, removed the total iron, ferrous sulfate, calcium Salt, heavy metals and other projects; --- Increasing the loss on drying requirements to replace GB 6781-1986 moisture indicators; --- Modify the arsenic limit indicators with reference to international standards. The standard proposed by China National Light Industry Council. This standard by the National Food Fermentation Standardization Center. This standard was drafted. China Food Additive Production and Application Industry Association, Henan province Luoyang city food additive plant, Chinese food fermentation Industrial Technology Research Institute. The main drafters of this standard. Lowering, Lihui Yi, Ren Zhilong, Hu Jianping. This standard replaces the standards previously issued as follows. --- GB 6781-1986. Food additives Ferrous lactate

1 Scope

This standard specifies the technical requirements of food additives Ferrous lactate, test methods, inspection rules, marking, packaging, transportation, storage and security Shelf. This standard applies to calcium lactate, sodium lactate or ammonium lactate with ferrous sulfate or ferrous chloride reacted with iron powder or lactic acid produced by the reaction Ferrous article trihydrate.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB /5009.11 Determination of total arsenic in food T and inorganic arsenic Determination of GB/T 5009.12 of lead in food GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987) Packing Administration of Quality Supervision, Inspection and Quarantine Commodity Measurement Supervision and Administration of the 75th Decree Food additives and health management approach the Ministry of Health [2002] 26 of Decree 3 Product chemical name, molecular formula, molecular mass and structural formula 3.1 Chemical Name Ferrous lactate (2-hydroxypropanoic acid ferrous). Formula 3.2 C6H10FeO6 · 3H2O. 3.3 formula [CH3CH COO] 2Fe · 3H2 O OH 3.4 relative molecular mass 288.03 (trihydrate) (according to 2001 international atomic weight table). 4. Technical Requirements 4.1 sensory characteristics Yellowish green crystalline powder, having a slight characteristic odor. 4.2 Solubility Slightly soluble in water, soluble in ethanol. 4.3 Physical indicators Shall comply with the requirements in Table 1. Table 1 Physical and Chemical Indicators Item Index Ferrous lactate content (dry basis) /% ≥ 96 Loss on drying /% ≤ 20 Chloride (Cl- meter) /% ≤ 0.1 Ferric iron (Fe3 + to count) /% ≤ 0.6 Sulfate (SO2-4 meter) /% ≤ 0.1 pH 5.0 ~ 6.0 Lead/(mg/kg) ≤ 1 Arsenic (As)/(mg/kg) ≤ 3

5 Test methods

Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682 set forth in the water. 5.1 Sensory test The sample was placed in a clean, dry white porcelain dish, under natural light, observe its color, smell its flavor. 5.2 Identification 5.2.1 Reagents a) Potassium permanganate test solution. 0.1mol/L. b) sulfuric acid. sulfuric acid. water = 1.20 (volume ratio). c) potassium ferricyanide solution. 100g/L. d) hydrochloric acid solution. hydrochloric acid. water = 1.3 (ratio by volume). e) morpholine solution. 20% (mass fraction). f) sodium nitroprusside test solution. 5% (mass fraction). g) sodium hydroxide solution. 1mol/L. 5.2.2 Analysis of step Identification of a) lactate. Take 5mL sample solution [Sample. water = 1.50 (mass ratio)], a solution of sulfuric acid was added 2mL mixed, and Add 2mL potassium permanganate test solution, heated, due acetaldehyde gases. Recognition acetaldehyde gas using an equal volume of 20% morpholine solution And 5% solution of sodium nitroprusside test solution of a mixture of moistened filter paper, filter paper in contact with the gas phase was blue. b) identification of ferrous salts. Take 10mL sample solution [Sample. water = 1.50 (mass ratio)] was added 2mL ferricyanide solution, students Into a dark blue precipitate, hydrochloric acid solution, insoluble precipitate, if the change plus 1mol/L sodium hydroxide solution, the precipitate was dissolved. Sample solution Liquid [sample. water = 1.50 (mass ratio)] and mixing 1mol/L sodium hydroxide solution, to produce the greenish white precipitate is then Fast turns green after shaking brown. 5.3 ferrous lactate content 5.3.1 Reagents a) phosphoric acid. b) sulfuric acid. sulfuric acid. water = 1.15 (volume ratio). c) cerium sulfate standard solution. 0.1mol/L, according to GB/T 601 formulated per milliliter of the standard solution is equivalent to 23.40mg ferrous lactate. d) phenanthroline test solution. according to GB/T 603 formulation. 5.3.2 Analysis of step Accurately weigh 0.8g sample (accurate to 0.0001g), placed in 300mL flask, was added a solution of sulfuric acid and 5mL 160mL Phosphoric acid, cooled to room temperature, if necessary. Add 1 drop of phenanthroline solution, immediately 0.1mol/L cerium sulfate standard solution titration to eliminate red Loss for the end, while the blank test. 5.3.3 Calculation Results Ferrous lactate content (dry basis) according to equation (1). X1 = (Vp Vp 1- 0) × × 0.234 Ba 100 (1) Where. X1 --- lactic acid ferrous content (dry basis),%; Vp 1 --- volume of sample is titrated with cerium sulfate standard solution, in milliliters (mL); V0 --- blank titration volume with cerium sulfate standard solution, in milliliters (mL); --- Ba concentration of cerium sulfate standard solution, unit mole per liter (mol/L); --- 0.234 mmol lactate ferrous mass in grams (g); X2 --- Loss on drying of the sample mass fraction,%. 5.3.4 allowable difference The absolute difference between two parallel determination results obtained under repeatability conditions, shall not exceed 2% of the arithmetic mean, take two parallel measurement The arithmetic mean of the given measurement results. 5.4 Loss on drying 5.4.1 Instruments a) electric oven. b) weighing bottle. diameter 60mm ~ 70mm, height 35mm or less. 5.4.2 Analysis of step The weighing bottle was placed 105 ℃ ± 1 ℃ oven drying 30min, constant weight. In the weighing bottle accurately weighed sample taken 1.0g ~ 2.0g of (Accurate to 0.0001g), stamped, side shake, the sample was evenly distributed in the weighing bottle, the loading of the weighing bottle into the oven, open the bottle, The caps remain in the oven, and dried 3h at 105 ℃ ± 1 ℃, open the oven, the tape sample weighing bottle immediately close the lid, put in the dryer Cool to room temperature, constant weight, based on the quality and reduce the sample size calculations loss on drying. 5.4.3 Calculation Results Loss on drying mass fraction according to equation (2). 100 (2) Where. X2 --- Loss on drying mass fraction,%; 5.4.4 allowable difference Two independent determination results in the absolute difference obtained under repeatability conditions, shall not exceed 2% of the arithmetic mean, take two parallel measurement The arithmetic mean of the given measurement results. 5.5 Chloride 5.5.1 Reagents a) a solution of nitric acid. nitric acid. water = 1.9 (ratio by volume). b) silver nitrate solution. 0.1mol/L, according to GB/T 601 formulation and calibration. c) Chloride standard solution. According to GB/T 602 After preparation, diluted to 0.01mg per 1mL equivalent of chloride ions. 5.5.2 Analysis of step Weigh 0.1g sample (accurate to 0.01g) placed in 50mL Nessler colorimetric tube, add water to make dissolved nitric acid solution and 10mL Solution, add 1mL silver nitrate solution, add water to 50mL, shake, in the dark place 5min, on the same set with black background and standard pipe turbidity, which Turbidity can not be deeper than the standard tube. Preparation of standard tube. Imbibe 10mL chloride standard solution, and the sample tube while the same treatment. 5.6 ferric iron content 5.6.1 Reagents a) hydrochloric acid. AR. b) potassium iodide. AR. c) sodium thiosulfate standard solution. 0.1mol/L, prepared according to GB/T 601, per milliliter of the standard solution is equivalent to 5.585mg of trivalent Iron ions. d) starch indicator. Press GB/T 603 formulation. 5.6.2 Analysis of step Weigh 5g sample (accurate to 0.0001g) placed in 250mL iodometric flask, add 100mL of water and 10mL of hydrochloric acid, if necessary, cooling To room temperature, add 3g of potassium iodide, Mesa, shake, in the dark place 5min. With 0.1mol/L sodium thiosulfate standard solution titration, the near end When point, add 2mL starch indicator and continue the titration to the disappearance of the blue end. While doing the blank test. 5.6.3 Calculation Results Ferric iron content according to equation (3) Calculated. X3 = (Vp 3- Vp 2) × × 0.05585 Ba (3) Where. X3 --- ferric iron mass fraction,%; Vp 3 --- volume of sample is titrated with sodium thiosulfate standard solution, in milliliters (mL); Volume Vp 2 --- blank titration with sodium thiosulfate standard solution, in milliliters (mL); Ba --- sodium thiosulfate standard solution concentration units per liter (mol/L); --- Quality 0.05585 mmol of ferric iron in grams (g); 5.6.4 allowable difference Two independent determination results in the absolute difference obtained under repeatability conditions, shall not exceed 2% of the arithmetic mean, take two parallel measurement The arithmetic mean of the given measurement results. 5.7 sulfate 5.7.1 Reagents a) a solution of HCl. hydrochloric acid. water = 1.4 (ratio by volume). b) barium chloride solution. 250g/L. c) sulfate standard solution. After pressing GB/T 602 preparation, diluted to 0.01mg per milliliter is equivalent to sulfate ion. 5.7.2 Analysis of step Weigh 0.1g sample (accurate to 0.01g) placed in 50mL Nessler colorimetric tube, add water and 2mL of hydrochloric acid solution to dissolve Add 5mL barium chloride solution, add water to 50mL, shake, in the dark place for 10min, on the same set with black background turbidity standard pipe, a cloud Shall be not deeper than the standard tube. Preparation of standard tube. Imbibe 10mL sulfate standard solution, sample tubes simultaneously with the same treatment. Weighed amount of sample to prepare a 1.50 (by volume) aqueous solution at room temperature was measured by a pH meter. 5.9 Lead According to the provisions of GB/T 5009.12 measured. 5.10 Arsenic According to GB/T 5009.11 regulations were measured.

6 Inspection rules

6.1 Batch determination By the production units of product quality inspection departments to determine the lot number in accordance with their respective rules, the final mixing and there is uniformity of mass production Product batch. 6.2 Sampling methods and sample size In each batch of products at random samples of each batch of sample extract 3% of the number of pieces of packaging, each batch of not less than three packs, each Sample of not less than 100g, the extracted sample rapidly mixed, distributed into two clean, dry bottle, marked on the bottle manufacturing plant, producing Product name, batch number, quantity and date of sampling bottle for examination, a bottle seal retained for future reference. 6.3 factory inspection 6.3.1 factory inspection items include ferrous lactate content, loss on drying, chloride, ferric iron and sulfate. 6.3.2 Each batch of products should be produced by the plant inspection department by the method specified in this standard test and issued before the factory product certification. 6.4 Type inspection All items specified in the technical requirements of this standard are type inspection items. Type inspection every six months, or when the following One situation when tested. --- Raw materials, process large changes; After --- Discontinued resume production; --- Factory test results with the usual recording is quite different; --- Quality Supervision, Inspection agencies or when requested by the user. 6.5 determine the rules When all the technical requirements for inspection, test results if an index does not meet the requirements of this standard should be re-double sampling multiplexes Inspection. Review the results even if one does not meet this standard, the entire batch of products as unqualified. When opposition parties, such as supply and demand for product quality arises, selected by mutual agreement of arbitration institutions, according to test methods specified in this standard of conduct arbitration. 7 signs, packaging, transportation, storage and shelf life 7.1 marks Product marking shall meet the requirements of the Ministry of Health [2002] Decree 26 of Chapter IV, it should also be labeled with a hydrated state. 7.2 Packaging Product packaging shall be approved by the state, and in accordance with relevant hygiene standards of food packaging materials, packaging net weight deviation should be consistent State Administration of Quality Supervision, Inspection and Quarantine Section 75 orders. 7.3 Transport Products during transport shall not be mixed and carried toxic and hazardous substances and pollution, avoid the sun and rain and so on. 7.4 Storage The product should be stored in well-ventilated, clean, dry place, not with toxic, hazardous and corrosive and other substances exist. 7.5 Shelf Life From the date of manufacture, in the case of the above-stated storage conditions, original packaging intact, the shelf life should be more than six months.

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